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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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04-22-2020, 12:18 AM | #57 | |
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I see you suggested the 1st gen intake manifold. Have you seen dynos showing it to be better than the red one? |
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04-22-2020, 04:41 AM | #58 |
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Smaller air intake temps with the 1st gen manifold?
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04-22-2020, 05:04 AM | #59 | |
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Definitely not looking forward to playing with thes MAF settings again with the TB but so be it. I think the intake may play a big part only to due to seeing 10whp differences on dynos based on small things. I have to check out the racer x fab
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Last edited by Dom_J; 04-22-2020 at 03:22 PM. |
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04-22-2020, 08:59 AM | #60 | |
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04-22-2020, 09:36 AM | #61 |
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Imho not worth it. Gains on MY2017 come from four things, updated intake manifold, updated exhaust header, tune, less restrictive stock air filter. Are there some gains to be had with changing these? Yes, slight. Drop in aftermarket airfilter + tune will negate most of difference though. But if changing out all boltons, especially exhaust header, then aftermarket will net better gains per buck then retrofitting stock red manifold.
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The Following User Says Thank You to churchx For This Useful Post: | nikitopo (04-22-2020) |
04-22-2020, 10:20 AM | #62 | |
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The Following User Says Thank You to Mike_ZN6 For This Useful Post: | SuperTom (04-23-2020) |
04-22-2020, 10:28 AM | #63 |
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I meant all bolton intake/exhaust mods in general. There are bits (especially exhaust catless header) that will net tenfold what red manifold will at same price.
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04-22-2020, 12:32 PM | #64 | |
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This a dyno from Delicious tuning. The only change was adding a MY17 header and intake manifold to a MY15. The car already had a drop in filter and intake tube... These are avg runs I got from virtual dyno. Yeah I know virtual dyno, but its better than an opinion with no substance behind it right? Same stretch of road, full tank of E85, HKS catless header, Greddy snorkel scoop, drop in Blitz filter, Mishimoto intake tube, 2.75" overfront pipe, Perrin catback and SAE corrected for weather conditions of that day. The numbers aren't as important as the trend from the runs of course. When I graphed raw MAFv it came out just like below as well. I don't feel a MY17 IM by its self is worth it past looks. However if you are willing to go a step farther it is certainly worth it. A 2mm bored over OEM TB is only $160 via Maxbore. My IM was port matched to the TB exit of course. The expensive step is the extrude honing at $550+. |
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04-22-2020, 01:01 PM | #65 |
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If I were trying to stretch this thing to make 220 whp I would buy the racerx manifold. With an aggressive tune you might get near 220 on a perfect day with proper planetary alignment but for a daily this is a fool's errand imo.
I would also consider a good header and catless system to be necessary. |
04-22-2020, 01:20 PM | #66 | |
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04-22-2020, 01:38 PM | #67 | |
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No that's all incorrect, it would be nice if it was that simple. I don't just use the temp correction on the program. You have to normalize to your attitude, humidity and barometric pressure for that day at that particular time to SAE externally to this program. These are just the avg run of 3 different setups. They are taken from 50 logs over 6 months, yes even with higher intake temps.. Conditions change though out a day, just because the temp is the same doesn't mean anything else will be even an hour later. Also as I said before the trend is more important than the number itself. Yeah we have the same size TB but that's about it I bet..If the setup isn't the same why bother mentioning it? Results come from the sum of parts not just the one. |
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04-22-2020, 02:43 PM | #68 |
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Sounds like if you are trying to get the most out of NA then it might be worth the cost. But for most DD that want to stay NA, the cost per HP is high If just for looks, I paint my IM red before I spend money for a new one.
Last edited by Ernest72; 04-22-2020 at 09:32 PM. |
04-22-2020, 03:54 PM | #69 | ||
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I feel like your car/setup would be absolutely perfect for an intake shootout on a dyno. Call me crazy but I think that 10 whp will be found in an intake of some sort. Quote:
I'd love for the actual company to take the time to post updated results(if they haven't already ie vs black manifold vs new MY17, maybe a video...its 2020). I mean, a big part of the price we pay is their R&D time and efforts, which I'm totally for. We just shouldn't be doing much "hoping and wishing" at a $1000. If it's aimed at F/I applications, cool. Beautiful piece though. I think we're getting to the point of more people having the capabilities to put this stuff to the test. Since we're on the topic of virtual dynos for what it's worth, this week's intake shenanigans with the dash command app/bluetooth OBD2. 1st 4th gear pull(left side) 72* outside 219hp/160tq @7280 TRD Intake(slightly modified; ie smoothed out inside) GReddy Snorkel Crawford BPB Added timing up top to compensate 2nd 4th gear pull(right side) *89 outside 248hp/172tq @7456rpm INJEN 3.5 SRI Greddy Snorkel Removed Powerblocks Removed timing up top I think I'm going to try again with the TRD intake and BPB's removed. I absolutely hate that 90* bend on intakes and that huge stepdown process of the INJENS from the 3.5" to 2.75" back up to 3"(hence why MAF was a pain but I have fuel trims at +- (0-2%). I'm going to dyno them all soon, making sure I have a tune scaled for each setup. *EDIT* Did a re-run w/o the blocks on the TRD intake....much closer(second image) TRD w/o BPB & optimized MAF scale - 244hp / 173tq INJEN w/o BPB & optimized MAF scale - 252hp / 178tq .
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Last edited by Dom_J; 04-24-2020 at 02:55 PM. |
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The Following User Says Thank You to Dom_J For This Useful Post: | Mike_ZN6 (04-23-2020) |
04-23-2020, 12:02 AM | #70 | |
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Last edited by nikitopo; 04-23-2020 at 12:15 AM. |
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